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Gastrointestinal diseases > Guinea pig GI (from pink book) > Flashcards

Guinea pig GI (from pink book) Flashcards

1
Q

What is the guinea pig/chinchilla dental formula?

A

20 teeth; I1, C0, PM1, M3 (in all 4 quadrants)

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2
Q

What is the palatal ostium?

A

The soft palate and base of the tongue are all continuous- the ostium is the hole through them that allows the oropharynx & rest of pharynx to connect.

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3
Q

GP salivary glands are (4):

A

Parotid, mandibular, sublingual, molar

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4
Q

How is the guinea pig stomach unlike that of rats, mice, hamsters?

A

all glandular tissue - other rodents listed are monogastric but 2 sectioned (glandular & non). not sure about chinch or degu.

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5
Q

Cecum is on which side?

A

Left (and middle) - it’s 65% of GI contents!

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6
Q

How many taeniae coli in the GP cecum?

A

3

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7
Q

Normal gastric emptying for a guinea pig?

A

2 hours

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8
Q

Normal mouth to butt time? (guinea pig)

A

20 hours

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9
Q

Normal mouth to butt to mouth to butt time? (guinea pig)

A

66 hours

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10
Q

The rabbit fiber sorting strategy is called ______

Vs everybody else is called _______

A

Rabbits wash back

Guinea pigs & everybody else: mucus trap

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11
Q

How does the mucus trap strategy work?

A

bacteria from cecum go into the colon and get trapped in mucus; the mucus gets antiperistalsed into the secum. Less efficient than the wash back, so colon is larger/heavier in a GP than a rabbit (more work to do)

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12
Q

what is the colonic furrow?

A

in the ascending colon, - a “track” to send mucus back to cecum, and has high concentration of nitrogen & bacteria

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13
Q

Radiographic features of a GDV:

A

Large, gas filled stomach on the RIGHT side of the cranial abdomen; or sometimes will be caudal, with intestines between stomach and liver

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14
Q

normal occlusal angle of guinea pig teeth?

A

30 degrees

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15
Q

treatment of a GP GDV?

A

Sedate
Decompress
Pain mgmt, fluid resuscitation
Surgery to eval stomach etc; if viable, pexy serosa of the stomach to the abdominal wall

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16
Q

What types of bacteria overgrow in GP dysbiosis? (per the pink book)

A

Gram negs & C diff

17
Q

C diff enterotoxins cause:

A

secretory diarrhea

hemorrhagic typhlitis

18
Q

What causes Tyzzer’s disease in guinea pigs?

A

Clostridium piliforme

19
Q

Symptoms of Tyzzer’s disease?

A

lethargy, anorexia, diarrhea, ill-thrift

20
Q

Necropsy findings with Tyzzer’s disease

A

intestinal inflammation, focal hepatic necrosis

21
Q

treatment for Tyzzer’s disease

A

PSYCH. nothing specific. don’t let them be crowded, stressed, or fed crap. Supportive care, metronidazole I suppose.

22
Q

What Salmonella spp show up in GPs?

A

Not super common, but enteritidis and typhimurium both reported. caused by fecal contamination of food and water; usually affects weanlings, preg sows, old, or poorly cared for/fed crap

23
Q

symptoms of salmonella?

A 
Scruffy hair coat
Weight loss
Weakness
Conjunctivitis
Abortion
\+/- diarrhea
24
Q

Necropsy findings of salmonellas in GPs?

A

Splenic & liver enlargement

yellow necrotic foci in viscera

25
Q

Concerns after tx for salmonella?

A

Asymptomatic carrier state

Zoonotic risk

26
Q

Plague in guinea pigs!

A

Not really. Yersinia pseudotuberculosis not pestis.

Abscesses of intestine, liver, regional LN

27
Q

E coli in guinea pigs

A

wasting, depression, death in weanlings

yellow fluid in intestines

28
Q

Other miscellaneous GP bacterial enteritides:

A

C Perf
Pseudomonas
Citrobacter
Listeria

29
Q

Eimeria caviae

A

Guinea pig coccidia - diarrhea in young animals typically

30
Q

Cryptosporidium wrairi

A

failure to gain weight (or weight loss), diarrhea

more likely to affect weanlings and immunocompromised animals

31
Q

Balantidium caviae

Paraspidodera uncinata

A

Exist in GPs but no further notes on them

32
Q

Typical treatment for fecal impaction in guinea pigs?

A

increase fiber and clean it regularly

Gastrointestinal diseases (8 decks)

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